East African Currency Board, a printers archival specimen 10 shillings, 15 December 1921, serial number A/1 00000, dark green and lilac, George V at low right, value at centre and each corner, signatures of Mercer, Bottomley and Ezechiel, reverse green, lion at centre (Pick 14s, TBB B210as), in PCGS Currency holder 63 CHOICE NEW, perforated CANCELLED, very rare and attractive